CN110457102A - Blur method, rendering method and the calculating equipment of visual object - Google Patents
Blur method, rendering method and the calculating equipment of visual object Download PDFInfo
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- CN110457102A CN110457102A CN201910683994.4A CN201910683994A CN110457102A CN 110457102 A CN110457102 A CN 110457102A CN 201910683994 A CN201910683994 A CN 201910683994A CN 110457102 A CN110457102 A CN 110457102A
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- fuzzy
- visual object
- texture map
- window
- region
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/048—Indexing scheme relating to G06F3/048
- G06F2203/04804—Transparency, e.g. transparent or translucent windows
Abstract
The invention discloses a kind of blur methods of visual object, it is executed in calculating equipment, visual object has fuzzy subobject, and the method comprising the steps of: obtaining the pixel value of visual object region from frame buffer zone, generates the texture map of the fuzzy subobject of the visual object；Fuzzy Processing is carried out to texture map, obtains background texture map；Background texture map is write back to the corresponding region of frame buffer zone；Visual object is drawn, to generate the prospect texture map of the visual object；Background texture map is carried out Alpha with prospect texture map to mix, so that the visual object rendered shows blur effect.The present invention discloses corresponding calculating equipment together.
Description
Technical field
The present invention relates to graphical interfaces field of display technology more particularly to a kind of blur methods of visual object, rendering side
Method and calculating equipment.
Background technique
Window manager is the application program for managing window, such as can control the appearance of window, in screen
Display position and the method for providing a user action pane etc..Visually typically window provides window manager
The title bar and frame of customization, title bar would generally icon, title and the minimums of display window, maximization, closing
Equal buttons.In Linux desktop environment, user can be the relevant technology of X11 or by way of being specified by window manager
Customize Headers column and frame.
In order to keep desktop more beautiful, easy-to-use, user wishes that the background of title bar window and frame can be with bottom of window
Content mix, show translucent dynamic fuzzy effect.When the content of bottom of window changes, title bar window
Background and frame also can correspondingly carry out dynamic change.
Currently, under Linux desktop environment, most of window manager not dynamic of support window title bar and frame
Blur effect；For a small number of window managers for supporting dynamic fuzzy effect, customization, aesthetics are poor, it is difficult to meet and use
Family requires.For example, the window manager KWin under KDE desktop environment only can be realized the dynamic analog to all title bar windows
Paste, can not obscure some or certain several windows with customizing, also not support the dynamic fuzzy of full window ranges.This
Outside, KWin can not also customize the shape of the fuzzy region of single window, can not (such as window is cut to the visual element except window
Change component, window preview component etc.) it is obscured.
Summary of the invention
For this purpose, the present invention provides the blur method of visual object a kind of, rendering method and calculates equipment, to try hard to solve or
At least alleviate above there are the problem of.
According to the first aspect of the invention, a kind of blur method of visual object is provided, is executed in calculating equipment, institute
Visual object is stated with fuzzy subobject, which comprises the pixel of visual object region is obtained from frame buffer zone
Value, generates the texture map of the fuzzy subobject of the visual object；Fuzzy Processing is carried out to the texture map, obtains background material
Figure；The background texture map is write back to the corresponding region of the frame buffer zone；The visual object is drawn, it is described visual to generate
The prospect texture map of object；The background texture map is carried out Alpha with the prospect texture map to mix, so that is rendered can
Blur effect is showed depending on object.
Optionally, in the blur method of visual object according to the present invention, visual object includes: window, windows exchange
Component, window preview component, workspace preview component.
Optionally, in the blur method of visual object according to the present invention, Fuzzy Processing is carried out to the texture map, is obtained
Include: that Fuzzy Processing is carried out to the texture map to the step of background texture map, obtains fuzzy texture map；It is described visual right to obtain
The fuzzy region exposure mask is mixed with the fuzzy texture map, obtains the background material by the fuzzy region exposure mask of elephant
Figure.
Optionally, in the blur method of visual object according to the present invention, the pixel value includes the color value of pixel
And transparence value, the texture map include Color Channel figure and transparency channel figure；It is described that fuzzy place is carried out to the texture map
The step of managing, obtaining background texture map includes: to carry out Fuzzy Processing to the Color Channel figure, obtains fuzzy texture map；By institute
It states fuzzy region exposure mask to be mixed with the transparency channel figure, obtains background texture map.
Optionally, in the blur method of visual object according to the present invention, fuzzy place is carried out to the Color Channel figure
The step of reason includes: to carry out convolution to the Color Channel figure using preset convolution kernel.
Optionally, in the blur method of visual object according to the present invention, fuzzy region exposure mask is fuzzy to be used to indicate
The bitmap in region, and the pixel value of fuzzy region is 1；The fuzzy region exposure mask is mixed with the transparency channel figure
The step of include: that the pixel value of corresponding position by the fuzzy region exposure mask Yu the transparency channel figure is done and operation.
According to the second aspect of the invention, a kind of rendering method is provided, is executed in calculating equipment, comprising: will send
The visual object of request and the visual object with fuzzy subobject are redrawn as visual object to be redrawn；According to display layer
The bottom-up sequence of grade renders each visual object to be redrawn, wherein when visual object to be redrawn has fuzzy son right
As when, the visual object is obscured according to above-mentioned blur method, so that blur effect is presented in the visual object that renders.
According to the third aspect of the present invention, a kind of calculating equipment is provided, comprising: at least one processor；Be stored with
The memory of program instruction, described program instruction include window manager；When the window manager is read by the processor
And when executing, so that described calculate the blur method and rendering side as described above that equipment executes visual object as described above
Method.
According to the fourth aspect of the present invention, a kind of readable storage medium storing program for executing for being stored with program instruction is provided, when the journey
When sequence instruction is read and executed by calculating equipment, so that the blur method for calculating equipment and executing visual object as described above
With rendering method as described above.
The blur method of visual object of the invention realizes visual object by the way that fuzzy subobject is arranged for visual object
It is fuzzy, that is, fuzzy subobject is set to need to carry out fuzzy visual object, does not need to carry out fuzzy visual object then not
Fuzzy subobject is set, so as to customize, selectively obscures some or certain several visual objects.
On the basis of being provided with fuzzy subobject, the dynamic analog of visual object can be realized by fuzzy subobject
Paste.Specifically, the pixel value of visual object region is obtained from frame buffer zone, it is right as the texture map of fuzzy subobject
The texture map carries out Fuzzy Processing, obtains background texture map.Then, by the prospect texture map of the background texture map and visual object
Alpha mixing is carried out, so that the visual object rendered shows blur effect.Since the texture map of fuzzy subobject is by visual
The pixel value of object region generates, thus the fuzzy of entire visual object region may be implemented in blur method of the invention,
Visually more beautiful, user experience is more preferable.
Further, visual object of the invention can be window, windows exchange component, window preview component, workspace
Preview component etc., so that the various visual elements managed window manager obscure.
Further, blur method of the invention can be to need to carry out fuzzy visual object setting fuzzy region to cover
Film, fuzzy region exposure mask can define any shape.The texture map of fuzzy subobject is cut out by fuzzy region exposure mask
It cuts, the available background texture map with target shape, to realize the customizable of the fuzzy region of single visual object
Property.
Based on the blur method of visual object of the invention, the present invention also provides a kind of rendering methods, can be every in rendering
It when one frame desktop picture, is rendered using conventional method and does not need to carry out fuzzy visual object, using fuzzy side of the invention
Method needs to carry out fuzzy visual object the visual object of fuzzy subobject (be provided with) to render, make to render it is each can
The blur effect of customization is showed depending on object.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
To the accomplishment of the foregoing and related purposes, certain illustrative sides are described herein in conjunction with following description and drawings
Face, these aspects indicate the various modes that can practice principles disclosed herein, and all aspects and its equivalent aspect
It is intended to fall in the range of theme claimed.Read following detailed description in conjunction with the accompanying drawings, the disclosure it is above-mentioned
And other purposes, feature and advantage will be apparent.Throughout the disclosure, identical appended drawing reference generally refers to identical
Component or element.
Fig. 1 shows the schematic diagram according to an embodiment of the invention for calculating equipment 100；
Fig. 2 shows the flow charts of rendering method 200 according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of the desktop according to an embodiment of the invention including window A, B, C, D；
Fig. 4 shows the schematic diagram of window stack corresponding to desktop shown in Fig. 3；
Fig. 5 shows the schematic diagram of Actor tree structure corresponding to desktop shown in Fig. 3；
Fig. 6 shows the flow chart of the blur method 600 of visual object according to an embodiment of the invention；
Fig. 7 shows the schematic diagram of the blurring process of a visual object according to an embodiment of the invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Aiming at the problems existing in the prior art, the present invention provides the blur method and rendering method of a kind of visual object,
Customization to realize visual object is fuzzy, and the visual object on desktop is made to show the vision of more harmonious, beautiful modernization
Effect improves user experience.
The blur method and rendering method of visual object of the invention execute in calculating equipment.It calculates equipment and can be and appoint
Anticipating has the equipment of storage and computing capability, such as the computer for the personal configuration such as can be desktop computer, laptop,
It is also possible to the higher computer of the hardware configurations such as work station, server, can also be that mobile phone, tablet computer, intelligence are wearable
The mobile terminals such as equipment, but not limited to this.
Fig. 1 shows the schematic diagram according to an embodiment of the invention for calculating equipment 100.It should be noted that Fig. 1 institute
The calculating equipment 100 shown is only an example, in practice, the fuzzy of visual object for carrying out the present invention, rendering method
The calculating equipment equipment that can be disposable type, hardware configuration situation can be identical as calculating equipment 100 shown in FIG. 1,
It can also be different.Fuzzy, rendering method calculating equipment for carrying out the present invention can set calculating shown in FIG. 1 in practice
Standby 100 hardware component is increased or is deleted, and the present invention is to calculating the particular hardware configuration situation of equipment with no restrictions.
As shown in Figure 1, calculating equipment 100 in basic configuration 102 and typically comprising system storage 106 and one
Or multiple processors 104.Memory bus 108 can be used for the communication between processor 104 and system storage 106.
Depending on desired configuration, processor 104 can be any kind of processing, including but not limited to: microprocessor
(μ P), microcontroller (μ C), digital information processor (DSP) or any combination of them.Processor 104 may include such as
The cache of one or more rank of on-chip cache 110 and second level cache 112 etc, processor core
114 and register 116.Exemplary processor core 114 may include arithmetic and logical unit (ALU), floating-point unit (FPU),
Digital signal processing core (DSP core) or any combination of them.Exemplary Memory Controller 118 can be with processor
104 are used together, or in some implementations, and Memory Controller 118 can be an interior section of processor 104.
Depending on desired configuration, system storage 106 can be any type of memory, including but not limited to: easily
The property lost memory (RAM), nonvolatile memory (ROM, flash memory etc.) or any combination of them.System storage
Device 106 may include operating system 120, one or more is using 122 and program data 124.In some embodiments,
It may be arranged to be executed instruction by one or more processors 104 using program data 124 on an operating system using 122.
Calculating equipment 100 can also include facilitating from various interface equipments (for example, output equipment 142, Peripheral Interface
144 and communication equipment 146) to basic configuration 102 via the communication of bus/interface controller 130 interface bus 140.Example
Output equipment 142 include graphics processing unit 148 and audio treatment unit 150.They can be configured as facilitate via
One or more port A/V 152 is communicated with the various external equipments of such as display or loudspeaker etc.Outside example
If interface 144 may include serial interface controller 154 and parallel interface controller 156, they, which can be configured as, facilitates
Via one or more port I/O 158 and such as input equipment (for example, keyboard, mouse, pen, voice-input device, touch
Input equipment) or the external equipment of other peripheral hardwares (such as printer, scanner etc.) etc communicated.Exemplary communication is set
Standby 146 may include network controller 160, can be arranged to convenient for via one or more communication port 164 and one
A or multiple other calculate communication of the equipment 162 by network communication link.
Network communication link can be an example of communication media.Communication media can be usually presented as in such as carrier wave
Or computer readable instructions, data structure, program module in the modulated data signal of other transmission mechanisms etc, and can
To include any information delivery media." modulated data signal " can such signal, one in its data set or more
It is a or it change can the mode of encoded information in the signal carry out.As unrestricted example, communication media can be with
Wired medium including such as cable network or private line network etc, and it is such as sound, radio frequency (RF), microwave, infrared
(IR) the various wireless mediums or including other wireless mediums.Term computer-readable medium used herein may include depositing
Both storage media and communication media.
It include window manager 128 using 122 in calculating equipment 100 according to the present invention.Window manager 128 is
For managing the application program of window, such as it can control the appearance of window, the display position in screen and to user
The method etc. of action pane is provided.It in an embodiment of the present invention, include for executing wash with watercolours of the invention in window manager 128
The instruction of dyeing method 200 and blur method 600, the instruction can indicate that processor 104 executes 200 He of rendering method of the invention
Blur method 600, when rendering each frame desktop picture, rendered using conventional method do not need to carry out it is fuzzy visual right
As being rendered using blur method 600 of the invention and needing to carry out fuzzy visual object, make each visual object rendered
Show the blur effect of customization.
It should be noted that window manager 128 can execute rendering method 200 and blur method 600, but the present invention couple
The development process of window manager 128 is with no restrictions.Window manager 128 can be the new window management of entirely autonomous research and development
Device, the KWin being also possible under Mutter, KDE desktop environment under existing window manager, such as GNOME desktop environment
It is improved on equal window managers, that is, modified in existing window manager, add certain codes, be allowed to support this hair
Bright rendering method 200 and blur method 600.
According to a kind of embodiment, window manager 128 is the improvement to the window manager of Mutter framework.Mutter window
Mouth manager relies on Clutter technology to realize, Clutter is the shape library for being used for hardware-accelerated user interface, is used to
Create quick, visual effect graphic user interface abundant.And Clutter relies on this OpenGL of cogl and encapsulates library, in order to mention
For maximum compatibility, the function of cogl exposure is relatively limited, the case where especially for needing OpenGL to extend.Therefore, it is
The Mutter window manager is set to can be realized rendering method 200 and blur method 600 of the invention, the present invention is Mutter
Following improvement:
1, cogl is modified, can support the function of this OpenGL ES2.0API of glCopyTexSubImage2D.
Specifically, texture_2d_copy_sub_ can be added in the material of cogl processing driving (CoglDriverVtable)
This API of image, the API are used to copy from frame buffer zone (framebuffer) content (pixel value) in specified region to working as
In the texture map (texture) of preceding binding.
In addition, in the virtual table cogl_texture_pixmap_x11_vtable of material, (function table includes one group
General OpenGL material handles function) in handle function, such as Fuzzy Processing function, Alpha required for the definition present invention
Mixed function etc..
It can be from current frame by setting texture_2d_copy_sub_image and definition process function, cogl
The content drawn is taken out in buffer area as texture map, then texture map is obscured, blendes together (composite) etc.
Reason provides function basis to execute rendering method 200 and blur method 600 of the invention.
2, Clutter is modified, makes to need to carry out fuzzy visual object all to be redrawn in each frame.
The design of Clutter is carried out using Actor as unit, and each visual object corresponds to Actor.Visually
Windows exchange component, window preview component, the workspace preview component etc. that object is provided for example including window, window manager,
But not limited to this.There is hierarchical relationship, the Actor of top layer entitled Stage, each Actor can have arbitrarily between Actor
The sub- Actor of quantity.
Specifically, in order to enable Clutter to support rendering method 200 and blur method 600, Ke Yi of the invention
A special Actor class is defined in Clutter, is denoted as MetaBlurActor (fuzzy class).In addition, defining visual object
Attribute _ NET_WM_DEEPIN_BLUR_REGION_MASK (fuzzy region exposure mask), the value of the attribute is one, and be used to indicate can
Depending on the bitmap of the fuzzy region of object, and the pixel value of fuzzy region is 1.
It can be to need to carry out fuzzy visual object Actor to be arranged one based on fuzzy class MetaBlurActor
MetaBlurActor subobject (hereinafter referred to fuzzy subobject), for the visual object to be marked, so that window pipe
Reason device can the drafting stage of every frame identify it is in need carry out fuzzy visual object, guarantee these visual objects every
One frame can all be redrawn.It is possible to further realize corresponding visual object by fuzzy subobject MetaBlurActor
The dynamic fuzzy of Actor.Carrying out fuzzy specific steps to visual object by fuzzy subobject will be in fuzzy side hereafter
It is described in detail in method 600.
It can be to need to carry out fuzzy visual object based on _ NET_WM_DEEPIN_BLUR_REGION_MASK attribute
Fuzzy region exposure mask is set, and fuzzy region exposure mask can define any shape.By fuzzy region exposure mask come to fuzzy subobject
Texture map cut, the available background texture map with target shape, to realize the mould of single visual object
Paste the customizability in region.The concrete application step of fuzzy region exposure mask will be described in detail in blur method 600 hereafter.
The above-mentioned Mutter window manager that is revised as carried out to cogl and Clutter executes rendering method of the invention
200 and the function that provides the foundation of blur method 600 support.That is, can write out on the basis of above-mentioned modification for executing
The program instruction of rendering method 200 and blur method 600, so that Mutter window manager is able to carry out rendering side of the invention
Method 200 and blur method 600.
The development of window manager 128 is illustrated by taking Mutter window manager as an example above.But this field skill
Art personnel are appreciated that for executing window manager 128 of the invention in addition to can be to existing Mutter window management
Except the improvement of device, the improvement of other existing window managers can also be, be also possible to the completely new of entirely autonomous research and development
Window manager, the present invention to the development process of window manager 128 with no restrictions.
Fig. 2 shows the flow charts of rendering method 200 according to an embodiment of the invention.Method 200 is calculating equipment
It is executed in (such as aforementioned computing device 100), specifically, method 200 is executed by the window manager in calculating equipment.It needs
Bright, rendering method 200 can be recycled according to preset frame per second and be executed for rendering a frame desktop picture.For example, setting
Frame per second is 60Hz, then per second to refresh 60 frame desktop pictures, every frame desktop picture is all made of method 200 to render.
As shown in Fig. 2, method 200 starts from step S210.
In step S210, the visual object for redrawing request will be had sent and visual object with fuzzy subobject as
Visual object to be redrawn.
According to a kind of embodiment, visual object is that the window display area of desktop is (occupied after i.e. will be window maximized
Screen area) in the object with visual display effect.The window that visual object is provided for example including window, window manager
Changeover module, window preview component, workspace preview component etc., but not limited to this.
Fig. 3 shows the schematic diagram that one includes the desktop of tetra- windows of A, B, C, D, and each window is one visual
Object.It should be noted that it is succinct for attached drawing and explanatory note, window visual object is illustrated only in Fig. 3, is not shown
The other kinds of visual objects such as windows exchange component, window preview component.
Window manager generallys use window stack to manage the window having already turned on, and (i.e. user is current for current active window
The window operated) it is located at the top of window stack, other windows are then arranged according to the operation order of window, user's operation
More rearward, position of the window in window stack is closer to the top of window stack for the time sequencing of window.Multiple windows are in desktop
Upper to show it is possible that being laminated, lower windows may be blocked by parent window, be covered.Window stack can also be used for indicating window
Display level, the window closer to window stack top, display level it is higher.The window on window stack top is current active window
Mouthful, show that level highest, content are fully displayed, will not be blocked by other windows.In desktop shown in Fig. 3, window C is
The window that user is currently being operated, as current active window.
Fig. 4 shows window stack corresponding to desktop shown in Fig. 3.As shown in figure 4, current active window C is located at window
The top of stack, other windows A, B, D are arranged successively in window stack according to the sequencing being user-operably.
In the window manager of Mutter framework, using Actor come managing visual object, each visual object corresponds to
One Actor.There is hierarchical relationship, the entitled Stage of the Actor of top layer corresponds to entire window display area between Actor.
Each Actor can have any number of sub- Actor.
Fig. 5 shows the schematic diagram of Actor tree structure corresponding to window display area shown in Fig. 3.Such as Fig. 5 institute
Show, window A~D corresponds respectively to Actor_A~Actor_D, and Actor_A~Actor_D is top-level windows RootActor
The sub- Actor of (i.e. Stage).In desktop shown in Fig. 3, window C, window D are to need to carry out fuzzy visual object, accordingly
Fuzzy subobject MetaBlurActor_C, MetaBlurActor_D is arranged in ground, respectively Actor_C, Actor_D, to realize
The dynamic fuzzy of window C, window D.
The display state of visual object on the table can change with the interactive operation of user.When user is to visual
When object is operated, such as dragging window, adjustment window size, switching current active window (change the display layer of window
Grade), display/hide window preview component etc. whens, correspondingly visual object, which can issue, redraws request, and window manager is requested to redraw
The visual object, so that visual object shows visual effect corresponding with user's operation.
According to a kind of embodiment, the Actor of visual object can by window manager send queue_redraw (_
With_clip) message initiates to redraw request.Redrawing request includes clip information, that is, area information to be redrawn.To be redrawn
Region is a rectangular area, and area information to be redrawn can be the information shaped like (x, y, width, height), wherein x,
Y is respectively the horizontal axis of the pixel in the rectangular area upper left corner, ordinate of orthogonal axes, width, height be respectively rectangular area width and
It is high.After window manager redraws request receive that visual object sends comprising clip information, in subsequent step S220,
The region to be redrawn of the visual object can be redrawn.It should be noted that redrawing for sub- Actor can also cause father Actor
Redraw.
Other than having sent and redrawing the visual object of request, window manager also identifies institute in the drafting stage of every frame
There is the visual object Actor with fuzzy subobject MetaBlurActor, using these visual objects as to be redrawn visual right
As being redrawn.
For example, window A is switched to current active window by user in desktop shown in Fig. 3, correspondingly, window A's
Actor will redraw request based on user's operation initiation, and window A is visual object to be redrawn.It is obscured in addition, window C has
With fuzzy subobject MetaBlurActor_D, i.e. window C, window D are by subobject MetaBlurActor_C, window D
It needs to carry out fuzzy visual object, correspondingly, window C, window D are visual object to be redrawn.
It has been determined after the visual object redrawn in step S210, has executed step S220.
In step S220, each visual object to be redrawn is rendered according to the display bottom-up sequence of level, wherein
When the visual object wait redraw has fuzzy subobject, the blur method 600 of visual object according to the invention can to this
It is obscured depending on object, so that blur effect is presented in the visual object rendered.
Display level is for indicating each visual object in the stacking situation of window display area, the display layer of visual object
Grade is higher, and the display content of the visual object is more complete, will not more be blocked by other visual objects.When visual object is window
When, the display level of window, the display layer of the window (i.e. current active window) on window stack top can be indicated with window stack
Grade highest.
According to a kind of embodiment, in the render process of step S220, each visual object both corresponds to an off screen
Frame buffer zone (offscreen framebuffer), is stored with the texture map of visual object in off screen frame buffer zone, in texture map
The pixel value of each pixel including visual object.Each visual object can be respectively completed drafting, drawing result is written respective
Texture map in.Then, according to the display bottom-up sequence of level, the texture map of each visual object is sequentially written in frame and is delayed
It rushes in the corresponding position of area (framebuffer), to complete the rendering of present frame.
In step S220, visual object to be redrawn can be divided into two classes, one kind be do not need to carry out it is fuzzy visual
Object (is not provided with the visual object of fuzzy subobject), another kind of (to be provided with to need to carry out fuzzy visual object
The visual object of fuzzy subobject), the method for drafting different from of these two types of visual objects.
For not needing to carry out fuzzy multiple visual objects, upper no strict sequence, Ke Yifen are being drawn
Not, it is concurrently drawn.
For needing to carry out fuzzy multiple visual objects, since it needs to carry out the dynamic fuzzy of background, it is therefore desirable to
It completes to draw according to the display bottom-up sequence of level, that is, only when the visual object (lower layer, lower layer of a certain visual object
Visual object be the visual object background) draw after, just can star the drafting of the visual object.In drawing process
In, 600 the visual object is obscured by the following method, so that the visual object visually shows fuzzy effect
Fruit.
Fig. 6 shows the flow chart of the blur method 600 of visual object according to an embodiment of the invention.Method 600
It is executed in calculating equipment (such as aforementioned computing device 100), specifically, method 600 is by the window manager in calculating equipment
It executes, for being obscured to single visual object.As shown in fig. 6, method 600 starts from step S610.
In step S610, the pixel value of visual object region is obtained from frame buffer zone, generates the visual object
Fuzzy subobject texture map.
Frame buffer zone, that is, framebuffer is based on frame buffer zone wherein being stored with the pixel value of all pixels point on screen
The pixel value of middle storage can show corresponding image on the screen.
According to a kind of embodiment, in step S610, it is first determined the region where visual object determines visual object
The screen area covered.Then, it from the pixel value for obtaining all pixels point in the screen area in frame buffer zone, stores to this
It is raw in the off screen frame buffer zone (offscreen framebuffer) of the fuzzy subobject (MetaBlurActor) of visual object
At the texture map of the fuzzy subobject.
According to a kind of embodiment, pixel value includes the color value (R, G, channel B value) and transparence value (A channel of pixel
Value), correspondingly, the texture map of the fuzzy subobject of generation includes Color Channel figure (R, G, channel B figure) and transparency channel figure
(A channel figure) is stored with the color value of each pixel in Color Channel figure, is stored with the saturating of each pixel in transparency channel figure
Brightness value.
Then, in step S620, Fuzzy Processing is carried out to texture map, obtains background texture map.
According to a kind of embodiment, step S620 includes fuzzy and two processing steps of cutting.
In Fuzzy Processing step, Fuzzy Processing is carried out to texture map, obtains fuzzy texture map.Specifically, to texture map
In Color Channel figure carry out Fuzzy Processing, for example, using preset convolution kernel to Color Channel figure carry out convolution it is (right respectively
RGB channel figure carries out convolution), obtain fuzzy texture map.Fuzzy texture map includes R, G, the channel B figure after Fuzzy Processing.
It should be noted that specific algorithm used by Fuzzy Processing of the present invention to Color Channel figure is with no restrictions,
Such as can be Gaussian Blur algorithm, mean value fuzzy algorithmic approach, median filtering algorithm etc., but not limited to this.It is obscured for different
Processing Algorithm, the weighted value of each position may be different in the size and convolution kernel of the convolution kernel of setting.
After Fuzzy Processing step, executes and cut processing step.In cutting processing step, the mould of visual object is obtained
Area mask is pasted, fuzzy region exposure mask is mixed with fuzzy texture map, obtains background texture map.Specifically, by confusion region
Domain exposure mask is mixed with the transparency channel figure (A channel figure) in texture map, obtains background texture map.Background texture map includes
Mixed transparency channel figure and aforementioned fuzzy texture map.
As previously mentioned, fuzzy region exposure mask is an attribute of visual object.For needing to carry out the visual of Fuzzy Processing
Object, fuzzy region exposure mask are the bitmaps of a fuzzy region for being used to indicate visual object, and fuzzy region can be defined as appointing
It anticipates shape, the pixel value in fuzzy region is 1.According to a kind of embodiment, by the phase of fuzzy region exposure mask and transparency channel figure
It answers the pixel value of position to do and operation, 0 value area can be cropped, the background texture map with target shape is obtained, to realize
The customizability of the fuzzy region of visual object.
Then, in step S630, background texture map is write back to the corresponding region of frame buffer zone.It is described herein " corresponding
Region " is the visual object region in abovementioned steps S610.
Then, in step S640, visual object is drawn, to generate the prospect texture map of visual object.
In step S640, visual object is drawn, the pixel value of each pixel of visual object is obtained, it should by pixel value write-in
In the off screen frame buffer zone (offscreen framebuffer) of visual object, the prospect texture map of the visual object is generated.
Then, in step S650, background texture map is subjected to Alpha with prospect texture map and is mixed, so as to render
Visual object shows blur effect.
In step S650, visual object reads out background texture map from frame buffer zone, by background texture map and itself
Off screen frame buffer zone in the prospect texture map that is stored carry out Alpha mixing, texture map obtained after mixing is write back into frame
The corresponding region of buffer area.In this way, visual object will be in the desktop picture rendered according to the data in frame buffer zone
Reveal blur effect.
Fig. 7, which is shown, carries out fuzzy schematic diagram to the window C in Fig. 3.As shown in fig. 7, frame buffer zone framebuffer
In be stored with the RGBA channel value of each pixel of screen.
In step sl, the screen area 710 that window C (Actor_C) is covered is determined, by frame buffer zone
The pixel value of each pixel copies to the fuzzy subobject (MetaBlurActor_ of window C in the region 710 of framebuffer
C in off screen frame buffer zone (offscreen framebuffer)), the material of fuzzy subobject MetaBlurActor_C is generated
Figure.Texture map includes Color Channel figure (i.e. R, G, channel B figure) and transparency channel figure (i.e. A channel figure).
Then, in step s 2, the texture map of fuzzy subobject MetaBlurActor_C is obscured and is cut.Tool
Body:
Firstly, Fuzzy Processing is carried out to Color Channel figure, it is right respectively using preset convolution kernel (such as Gaussian convolution core)
R, G, channel B figure in texture map do convolution, generate the fuzzy texture map including tri- channel figures of R, G, B.
Then, cutting processing is carried out to transparency channel figure, by the fuzzy region exposure mask (shape mask) and A of window C
Channel figure is done and operation, i.e., does and operation the pixel value of the fuzzy region exposure mask of window C and the corresponding position of A channel figure, obtain
A channel figure after to cutting, the A channel figure after cutting have shape defined in the fuzzy region exposure mask of window C.
By Fuzzy Processing and cut processing step, the background material of available fuzzy subobject MetaBlurActor_C
Matter figure.Background texture map includes tri- channel figures of R, G, B (i.e. fuzzy texture map) after obscuring and the A channel figure after cutting.
Then, in step s3, background texture map is write back in the region 710 of frame buffer zone framebuffer.
Then, in step s 4, render window C, obtains the pixel value of each pixel in window C, and window is written in pixel value
In the off screen frame buffer zone (offscreen framebuffer) of mouth C, the prospect texture map of window C is generated.
Then, in step s 5, window C (Actor_C) obtains background texture map from the region 710 in frame buffer zone,
Prospect texture map is carried out Alpha with the background texture map got to mix.
Then, in step s 6, mixed texture map is write back the region 710 of frame buffer zone by window C (Actor_C)
In.In this way, window C will show blur effect in the next frame desktop picture rendered based on frame buffer zone.
A kind of A11: calculating equipment, comprising:
At least one processor；With
It is stored with the memory of program instruction, described program instruction includes window manager；
When the window manager is read and executed by the processor, so that the calculating equipment is executed as right is wanted
Seek rendering method described in any one of blur method and claim 8-10 of visual object described in any one of 1-7.
A12: a kind of readable storage medium storing program for executing being stored with program instruction is read and is held by calculating equipment when described program is instructed
When row, so that the blur method and right for calculating equipment and executing such as visual object of any of claims 1-7
It is required that rendering method described in any one of 8-10.
Various technologies described herein are realized together in combination with hardware or software or their combination.To the present invention
Method and apparatus or the process and apparatus of the present invention some aspects or part can take insertion tangible media, such as can
Program code (instructing) in mobile hard disk, USB flash disk, floppy disk, CD-ROM or other any machine readable storage mediums
Form, wherein when program is loaded into the machine of such as computer etc, and when being executed by the machine, the machine becomes to practice
Equipment of the invention.
In the case where program code executes on programmable computers, calculates equipment and generally comprise processor, processor
Readable storage medium (including volatile and non-volatile memory and or memory element), at least one input unit, and extremely
A few output device.Wherein, memory is configured for storage program code；Processor is configured for according to the memory
Instruction in the said program code of middle storage executes blur method and rendering method of the invention.
By way of example and not limitation, readable medium includes readable storage medium storing program for executing and communication media.Readable storage medium storing program for executing
Store the information such as computer readable instructions, data structure, program module or other data.Communication media is generally such as to carry
The modulated message signals such as wave or other transmission mechanisms embody computer readable instructions, data structure, program module or other
Data, and including any information transmitting medium.Above any combination is also included within the scope of readable medium.
In the instructions provided here, algorithm and display not with any certain computer, virtual system or other
Equipment is inherently related.Various general-purpose systems can also be used together with example of the invention.As described above, it constructs this kind of
Structure required by system is obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can
With using various programming languages realize summary of the invention described herein, and the description that language-specific is done above be for
Disclosure preferred forms of the invention.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects, In
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims than feature more features expressly recited in each claim.More precisely, as following
As claims reflect, inventive aspect is all features less than single embodiment disclosed above.Therefore, it abides by
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
As a separate embodiment of the present invention.
Those skilled in the art should understand that the module of the equipment in example disclosed herein or unit or groups
Part can be arranged in equipment as depicted in this embodiment, or alternatively can be positioned at and the equipment in the example
In different one or more equipment.Module in aforementioned exemplary can be combined into a module or furthermore be segmented into multiple
Submodule.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
In addition, be described as herein can be by the processor of computer system or by executing by some in the embodiment
The combination of method or method element that other devices of the function are implemented.Therefore, have for implementing the method or method
The processor of the necessary instruction of element forms the device for implementing this method or method element.In addition, Installation practice
Element described in this is the example of following device: the device be used for implement as in order to implement the purpose of the invention element performed by
Function.
As used in this, unless specifically stated, come using ordinal number " first ", " second ", " third " etc.
Description plain objects, which are merely representative of, is related to the different instances of similar object, and is not intended to imply that the object being described in this way must
Must have the time it is upper, spatially, sequence aspect or given sequence in any other manner.
Although the embodiment according to limited quantity describes the present invention, above description, the art are benefited from
It is interior it is clear for the skilled person that in the scope of the present invention thus described, it can be envisaged that other embodiments.Additionally, it should be noted that
Language used in this specification primarily to readable and introduction purpose and select, rather than in order to explain or limit
Determine subject of the present invention and selects.Therefore, without departing from the scope and spirit of the appended claims, for this
Many modifications and changes are obvious for the those of ordinary skill of technical field.For the scope of the present invention, to this
It invents done disclosure to be illustrative and be not restrictive, it is intended that the scope of the present invention be defined by the claims appended hereto.
Claims (10)
1. a kind of blur method of visual object executes in calculating equipment, the visual object has fuzzy subobject, described
Method includes:
The pixel value that visual object region is obtained from frame buffer zone, generates the material of the fuzzy subobject of the visual object
Figure；
Fuzzy Processing is carried out to the texture map, obtains background texture map；
The background texture map is write back to the corresponding region of the frame buffer zone；
The visual object is drawn, to generate the prospect texture map of the visual object；
The background texture map is carried out Alpha with the prospect texture map to mix, so that the visual object rendered shows
Blur effect.
2. the method for claim 1, wherein the visual object includes:
Window, windows exchange component, window preview component, workspace preview component.
3. method according to claim 1 or 2, wherein it is described that Fuzzy Processing is carried out to the texture map, obtain background material
The step of figure includes:
Fuzzy Processing is carried out to the texture map, obtains fuzzy texture map；
The fuzzy region exposure mask for obtaining the visual object mixes the fuzzy region exposure mask and the fuzzy texture map
It closes, obtains the background texture map.
4. method as claimed in any one of claims 1-3, wherein the pixel value includes the color value and transparency of pixel
Value, the texture map includes Color Channel figure and transparency channel figure；
Described to carry out Fuzzy Processing to the texture map, the step of obtaining background texture map, includes:
Fuzzy Processing is carried out to the Color Channel figure, obtains fuzzy texture map；
The fuzzy region exposure mask is mixed with the transparency channel figure, obtains background texture map.
5. method as claimed in claim 4, wherein it is described to the Color Channel figure carry out Fuzzy Processing the step of include:
Convolution is carried out to the Color Channel figure using preset convolution kernel.
6. method as described in claim 4 or 5, wherein the fuzzy region exposure mask is the bitmap for being used to indicate fuzzy region,
And the pixel value of fuzzy region is 1；
Described the step of being mixed the fuzzy region exposure mask with the transparency channel figure includes: by the fuzzy region
The pixel value of the corresponding position of exposure mask and the transparency channel figure is done and operation.
7. being executed such as method of any of claims 1-6 by window manager.
8. a kind of rendering method executes in calculating equipment, comprising:
The visual object for redrawing request will be had sent and visual object with fuzzy subobject is as visual object to be redrawn；
Each visual object to be redrawn is rendered according to the display bottom-up sequence of level, wherein when to be redrawn visual right
When as with fuzzy subobject, the visual object is obscured according to method of any of claims 1-7, so that
Blur effect is presented in the visual object rendered.
9. method according to claim 8, wherein described to redraw the area information to be redrawn that request includes visual object.
10. method as claimed in claim 8 or 9, is executed by window manager.
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| CN114924824A (en) | 2022-08-19 |
| CN110457102B (en) | 2022-07-08 |
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